Protective face mask



FIG. 1 is a front elevational view of a protective face mask showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a protective face mask, as shown. 